Chrysanthemum plant named ‘Zanmuaval Golden’

ABSTRACT

A  chrysanthemum  plant named ‘Zanmuaval Golden’ characterized by its medium sized blooms with yellow ray florets and prolific branching; natural season flower date week 42; blooming for a period of five weeks.

Botanical designation: Chrysanthemum×morifolium Ramat.

Cultivar denomination: ‘Zanmuaval Golden’.

RELATED CULTIVARS

The new plant is a mutant obtained from the chrysanthemum plant ‘Zanmuaval’ (U.S. Plant Pat. No. 22,659).

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of chrysanthemum plant, botanically known as Chrysanthemum×morifolium Ramat., commercially known as a garden mum, and hereinafter referred to by the cultivar denomination ‘Zanmuaval Golden’. The new plant is a product of a breeding and selection program which had the objective of finding color mutants from existing parent plants. The new plant comprises a whole plant mutant of the chrysanthemum plant named ‘Zanmuaval’. Plants from the new cultivar ‘Zanmuaval Golden’ differ from plants of the parent in the following characteristics. (1) Color ray-florets. (2) Type ray-florets. (1) The ray-florets of the new plant are yellow, while those of the parent plant are purple. (2) Ray-floret type is in the parent plant predominantly ligulate, while it is mostly quilled in the new plant.

The new cultivar was discovered as a color mutant in April 2009 by Wilhelmus Bernardus Blom in a controlled environment (greenhouse) in Rijsenhout, The Netherlands. The first act of asexual reproduction of ‘Zanmuaval Golden’ was accomplished when after planting of the mutant as a motherplant in May 2009, vegetative cuttings from this mutant were taken and propagated further in Rijsenhout, The Netherlands. The new cultivar has been found to retain its distinctive characteristics through successive propagations.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention of a new and distinct variety of chrysanthemum is shown in the accompanying drawings, the color being as nearly true as possible with color photographs of this type.

FIG. 1 shows a plant of the cultivar in full bloom.

FIG. 2 shows the various stages of blooms of the new cultivar.

FIG. 3 shows the various stages of foliage of the new cultivar.

DESCRIPTION OF THE INVENTION

The observations and measurements were gathered from plants grown out door in Rijsenhout, The Netherlands, under natural day length and temperature and planted in week 22 in 2011. The natural blooming date of this crop was October 17 (week 42). The average height of the plants was 30 cm. No growth retardants were used. No tests were done on disease or insects resistance or susceptibility. No tests were done on cold or drought resistance. This new variety produces medium sized blooms with yellow ray florets blooming for a period of five weeks.

From the cultivars known to inventor the most similar existing cultivar in comparison to ‘Zanmuaval Golden’ is its parent plant ‘Zanmuaval’ (U.S. patent application Ser. No. 12/805,257).

The following is a description of the plant and characteristics that distinguish ‘Zanmuaval Golden’ as a new and distinct variety.

The color designations are taken from the plant itself. Accordingly, any discrepancies between the color designations and the colors depicted in the photographs are due to photographic tolerances. The color chart used in this description is: The Royal Horticultural Society Colour chart, edition 2001.

DETAILED BOTANICAL DESCRIPTION

-   Bud:     -   -   Size.—Small; cross-section 0.5 cm, height 0.3 cm.         -   Shape.—Oblate.         -   Texture.—Pubescent.         -   Outside color.—Greyed-green 191B. -   Phyllaries:     -   -   Number.—20-22, arranged in 3 rows.         -   Shape.—Elliptic.         -   Apex.—Acute.         -   Base.—Truncate.         -   Margin.—Entire.         -   Color.—Upper surface: Greyed-green 191B. Lower surface:             Green 138A.         -   Length and width.—1 cm; 0.1 cm.         -   Texture.—Pubescent. -   Inflorescence:     -   -   Type.—Double.         -   Height.—2.5 cm.         -   Diameter.—4.5 cm.         -   Peduncle length.—5-6 cm.         -   Peduncle color.—Green 138C.         -   Peduncle diameter.—0.2 cm.         -   Peduncle texture.—Pubescent.         -   Number per branch.—Approx 0.6 inflorescences.         -   Duration of flowering.—5 weeks.         -   Seeds.—Produced in small quantities, ovate, Greyed-brown             199A, length 1.5 mm, diameter 0.8 mm.         -   Fragrance.—Faint chrysanthemum odor. -   Color:     -   -   Center of inflorescences.—Immature stage: Green-Yellow 1B.             Mature stage: Green-Yellow 1A.         -   Color of upper surface of the ray-florets.—Yellow 13C.         -   Color of the lower surface of the ray-florets.—Yellow 13C.         -   Tonality from distance.—A garden mum with yellow flowers.         -   Color of the ray-florets after aging of the plant.—Yellow             13C. -   Ray florets:     -   -   Texture.—Upper and lower surface smooth.         -   Number.—230-250.         -   Type.—Predominantly quilled.         -   Shape.—Elliptic.         -   Apex.—Varying from acute to dentate.         -   Base.—Attenuate.         -   Cross-section.—Flat.         -   Longitudinal axis of majority.—Straight.         -   Length of corolla tube.—0.2-0.4 cm.         -   Ray-floret margin.—Entire.         -   Ray-floret length.—1.4-2.8 cm.         -   Ray-floret width.—0.2-0.3 cm.         -   Ratio length/width.—High. -   Disc florets: Absent. -   Receptacle:     -   -   Color.—Green 138C.         -   Shape.—Domed raised.         -   Height.—0.3 cm.         -   Diameter.—0.4 cm. -   Reproductive organs:     -   -   Androecium.—Absent.         -   Pollen.—Not produced.         -   Gynoecium.—Present in ray-florets.         -   Style length.—3 mm.         -   Stigma color.—Yellow 7A.         -   Stigma width.—1 mm.         -   Ovary.—Enclosed in calyx. -   Plant:     -   -   Form.—Grown as a spray type pot mum, outdoor raised and             mounded.         -   Growth habit.—Spherical shape.         -   Growth rate.—Medium.         -   Height.—30 cm.         -   Width.—50 cm.         -   Stem color.—Greyed-brown 199A.         -   Stem strength.—Weak.         -   Stem brittleness.—Brittle.         -   Stem anthocyanin coloration.—Not observed.         -   Internode length.—2-4 cm.         -   Length of lateral branch.—From top to bottom 20 cm.         -   Lateral branch color.—Green 137C.         -   Lateral branch, attachment.—Brittle.         -   Lateral branch diameter.—2 mm.         -   Branching (average number of lateral branches).—Prolific             with 8-9 breaks after pinching.         -   Natural season blooming date.—October 17-21 (week 42). -   Foliage:     -   -   Leaf color.—Upper side: Green 139A. Lower side: Green N138A.         -   Color midvein.—Upper side: Yellow-green 147D. Lower side:             Yellow-green 148D.         -   Size.—Small.; length 3-4 cm, width 2-3.5 cm.         -   Quantity (number per lateral branch).—15-17.         -   Shape.—Broadly elliptic.         -   Texture upper side.—Sparsely pubescent.         -   Texture under side.—Pubescent.         -   Venation arrangement.—Palmate.         -   Shape of the margin.—Serrated.         -   Shape of base of sinus between lateral lobes.—Rounded.         -   Margin of sinus between lateral lobes.—Diverging.         -   Shape of base.—Truncate.         -   Apex.—Mucronulate.         -   Petiole length.—0.3-0.8 cm.         -   Petiole diameter.—0.2-0.4 cm.         -   Petiole color.—Yellow-green 147D.

TABLE 1 Differences with the comparison varieties Color upper ‘Zanmuaval Golden’ ‘Zanmuaval’ surface ray-florets Yellow 13C Purple N79C Type ray-florets Predominantly quilled Predominantly ligulate 

I claim:
 1. A new and distinct variety of chrysanthemum plant as described and illustrated. 